<!DOCTYPE html>
<html>
<!--
Copyright 2008 The Closure Library Authors. All Rights Reserved.

Use of this source code is governed by an Apache 2.0 License.
See the COPYING file for details.
-->
<!--
  Author: ptucker@google.com (Philip Tucker)
-->
<head>
<title>
  Closure Unit Tests - goog.gears
</title>
<script src="../base.js"></script>
<script>
  goog.require('goog.gears');
  goog.require('goog.string');
  goog.require('goog.testing.jsunit');
</script>
</head>
<body>
<script>

function assertInvalidFileName(original) {
  try {
    goog.gears.makeSafeFileName(original);
    fail('expect exception for file name: ' + original);
  } catch (ex) {
    // success
  }
}

function assertSafeFileName(expected, original) {
  var actual = goog.gears.makeSafeFileName(original);
  assertTrue('safe file name too short: ' + actual, actual.length > 0);
  assertTrue('safe file name too long: ' + actual, actual.length <= 64);
  assertEquals('unexpected value for safe file name', expected, actual);
}

function testSafeFileNameInvalid() {
  assertInvalidFileName(null);
  assertInvalidFileName('');
  assertInvalidFileName('\t');
}

function testSafeFileNameTypical() {
  var fileName = 'foo@foo.com-MyAppname-d';
  assertSafeFileName(fileName, fileName);
}

function testSafeFileNameLength() {
  // Just under limit.
  var fileName = goog.string.repeat('a', 64);
  assertSafeFileName(fileName, fileName);

  // Just over limit.
  fileName = goog.string.repeat('a', 65);
  var hashedSuffix = String(goog.string.hashCode(fileName));
  assertSafeFileName(fileName.substring(0, 54) + hashedSuffix, fileName);

  // Way over limit.
  fileName = goog.string.repeat('a', 1024);
  hashedSuffix = String(goog.string.hashCode(fileName));
  assertSafeFileName(fileName.substring(0, 54) + hashedSuffix, fileName);
}

function testSafeFileNameInvalidChar() {
  assertSafeFileName(goog.string.repeat('a', 44),
      goog.string.repeat('a', 22) + '\t' + goog.string.repeat('a', 22));
  assertSafeFileName('b', 'b' + goog.string.repeat('\t', 20));
  assertSafeFileName('b', 'b' + goog.string.repeat('\t', 200));
}

</script>
</body>
</html>
